76. You have a router running BGP for the MPLS network and OSPF for the local LAN network at the sales office. A route is being learned from the MPLS network that also exists on the OSPF local network. It is important that the router chooses the local LAN route being learned from the downstream switch running OSPF rather than the upstream BGP neighbor. Also, if the local OSPF route goes away, the BGP route needs to be used. What should be configured to make sure that the router will choose the LAN network as the preferred path?
有一个路由器在MPLS上运行BGP协议， 在销售办公室内部网络上使用OSPF协议。 一条路由 信息从MPLS网络学习来也同时存在于OSPF内部网络。重要的是路由器会选择BGP的路由， 而不是选择通过OSPF学习来的路由。此外如果OSPF路由消失，BGP路由还是需要使用。应 该怎么做保证这个路由器作为网络首选路由器。
A. static route needs to be added
B. floating static route needs to be added
C. bgp backdoor command
D. ospf backdoor command
Answer: C
77. In BGP routing, what does the rule of synchronization mean?
使用bgp backdoor命令(把EBGP变成IBGP)
在BGP路由协议中，同步是什么意思?
A. A BGP router can only advertise an EBGP learned route, provided that the route is an IGProute in the routing table.
B. A BGP router can only advertise an IBGP learned route, provided that the route is an IGP route in the routing table.
一个BGP 路由器学习只要能从IGP协议到达的所有IBGP邻居通告的路由
C. A BGP router can only advertise an IBGP learned route, provided that the route is an IGP route that is not in the routing table.
D. A BGP router can only advertise an EBGP learned route, provided that the route is a metric of 0 in the BGP table.
Answer: B
78. Router 1 is configured for BGP as dual-homed on the Cisco network. Which three BGP attributes are carried in every BGP update on this router (both IBGP and EBGP)? (Choose three.) 路由器1在CISCO网络中配置成多宿主BGP。以下那三个BGP属性在路由器上更新
A. origin
B. router-ID
C. AS-path
D. local-preference
E. next-hop
Answer: ACE
79. In your Cisco EIGRP network, you notice that the neighbor relationship between two of your routers was recently restarted. Which two of these choices could have made this occur? (Choose two.)
在CISCO EIGRP网络中，你发现两个路由器之间的近距关系最近重新启动了。哪两种可能 曹成这种情况的发生
A. An update packet with init flag set from a known, already established neighbor relationship was received by one of the routers. 从一个已知的邻居收到一个打标记的update包
B. The ARP cache was cleared.
C. The counters were cleared.
D. The IP EIGRP neighbor relationship was cleared manually. EIGRP邻居被手动清除了
Answer: AD
80. Your Cisco network currently runs OSPF and you have a need to policy-route some specific traffic, regardless of what the routing table shows. Which one of these options would enable you to policy-route the traffic?
你的CISCO网络目前运行OSPF协议，你需要用策略路由在控制一些特定的流量。无论路由 表显示什么，其中哪一些会选则你的策略路由的流量?
A. source IP address and the protocol (such as SSL, HTTPS, SSH)
B. the packet Time to Live and the source IP address
C. type of service header and DSCP value
D. destination IP address
Answer: A
81. You use OSPF as your network routing protocol. You use the command show ip route and you see several routes described as O, O IA, O E1, and O E2. What routes are in your area?
你的网络使用OSPF路由协议， 你查看路由表， 你看到在路由条目前有显示 O Oia O e1 和 O e2 哪些路由来自你所在的区域?
A. O IA
B. O E1
C. O E2
D. O
Answer: D
82. What are the mandatory, well-known BGP attributes?
哪一个是BGP路由必须有的属性
A. origin, AS-path, next-hop 源 路径 下一跳
B. AS-path, origin, MED
C. AS-path, origin, weight
D. AS-path, weight, MED
Answer: A
83.Based on the exhibit presented. What will be the objective of this route map when applied to traffic passing through a router?
A. Take any packet sourced from any address in the 10.2.0.0/16 network or destined to 10.1.14.25 and set the next hop to 10.1.1.1
B. Take any packet sourced from any address in the 10.2.0.0/16 network and destined to 10.1.14.25 and set the next hop to 10.1.1.1
C. Nothing; extended access lists are not allowed in route maps used for policy-based routing
D. Drop any packet sourced from 10.2.0.0/16 Answer: A 84.Based on the output provided in the exhibit, to which address or location will the router forward a packet sent to 192.168.32.1?
A. 10.1.1.1
B. 10.1.1.2
C. 10.1.1.3
D. The default gateway
Answer: A
85.Based on the exhibit presented. PG-R2 does not have any 10.100.x.x routes in either its routing table or its BGP table. What will you do at PG-R5 to solve this problem?
A. Disable BGP synchronization.
B. Set the BGP next-hop-self command for neighbor PG-R2
C.Configure a static route for 10.100.0.0/16 to null0
D. Add a BGP network statement to encompass the serial link.
Answer: C
